Implementation of DES Algorithm C Program

Simple C Program For DES Algorithm in Cryptography

Learn how to implement DES algorithm in C programming language. The DES encryption algorithm is an implementation of Fiestel Cipher. There are two different methods enlisted here for DES algorithm implementation in C programming.

What is DES Encryption Algorithm?

The DES algorithm is also sometimes referred to as Data Encryption Algorithm (DEA). The DES encryption algorithm is a symmetric key algorithm for the encryption of data. The block size is of 64 bits.

The DES is an archetypal block cipher which takes a fixed length string of plain-text bits. There’s another improvised version of this algorithm which is Triple DES Algorithm.

The simplified DES (S-DES) is a modified version of the data encryption standard DES algorithm. Another modified version of the DES algorithm is famously known as Triple DES. The key generator method creates 16 48-bit keys.